180908499

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 253440000

約数和(自身を除く): 72531501

約数列:

[1, 3, 47, 79, 109, 141, 149, 237, 327, 447, 3713, 5123, 7003, 8611, 11139, 11771, 15369, 16241, 21009, 25833, 35313, 48723, 404717, 553237, 763327, 1214151, 1283039, 1659711, 2289981, 3849117, 60302833, 180908499]

約数ペア:

[(1, 180908499), (3, 60302833), (47, 3849117), (79, 2289981), (109, 1659711), (141, 1283039), (149, 1214151), (237, 763327), (327, 553237), (447, 404717), (3713, 48723), (5123, 35313), (7003, 25833), (8611, 21009), (11139, 16241), (11771, 15369)]